Advanced Optical Materials最新文献_第3页

2D WSe2/MoS2 p-i-n Vertical Heterojunction Photodetectors by Selective Plasma Doping

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-16 DOI: 10.1002/adom.202402378

Qianqian Wu, Li Li, Chenglin Wang, Zhihao Wang, Zhengjin Weng, Yanfeng Jiang, Liangliang Lin, Xiaofeng Gu, Emigdio Chavez Angel, Alexandros El Sachat, Peng Xiao, Haiyan Nan, Shaoqing Xiao

{"title":"2D WSe2/MoS2 p-i-n Vertical Heterojunction Photodetectors by Selective Plasma Doping","authors":"Qianqian Wu, Li Li, Chenglin Wang, Zhihao Wang, Zhengjin Weng, Yanfeng Jiang, Liangliang Lin, Xiaofeng Gu, Emigdio Chavez Angel, Alexandros El Sachat, Peng Xiao, Haiyan Nan, Shaoqing Xiao","doi":"10.1002/adom.202402378","DOIUrl":"https://doi.org/10.1002/adom.202402378","url":null,"abstract":"Compared to traditional pn junctions, photodetectors based on 2D materials with a p-i-n structure offer enhanced photoresponsivity by broadening the depletion region and improving response speed by reducing junction capacitance. However, due to the lack of a mature, controllable doping process, p-i-n heterostructure photodetectors based on 2D materials are rarely reported. A 2D WSe2/MoS2 p-i-n vertical heterojunction photodetector created through plasma selective doping is presented. This device not only retains the wide junction region of the vertical heterojunction, but in coordination with the intrinsic layer (i layer), the width of the depletion region is broadened, increasing the photoactive area, Additionally, a strong built-in electric field is formed internally, greatly accelerating the rapid separation and transport of photogenerated carriers. The p-i-n vertical heterojunction photodetector exhibits a high responsivity and an ultra-fast response time (τr = 7.3 µs, τf = 5.49 µs), achieving nearly a 100 fold improvement over the pristine WSe2/MoS2 heterojunction. Under self-driven conditions, the device achieves a maximum responsivity of 0.32 A W−1 and a detectivity of 3.41 × 109 Jones at 637 nm. Additionally, stable detection in the near-infrared (NIR) is realized due to the interband transitions. These findings are expected to advance the development and application of photoelectric detection technologies.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase Transitions in Dimer/Layered Sb-Based Hybrid Halide Perovskites: An In-Depth Analysis of Structural and Spectroscopic Properties

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-13 DOI: 10.1002/adom.202402242

Iulia Corina Ciobotaru, Claudiu Constantin Ciobotaru, Cristina Bartha, Monica Enculescu, Mihail Secu, Silviu Polosan, Cristina Besleaga

{"title":"Phase Transitions in Dimer/Layered Sb-Based Hybrid Halide Perovskites: An In-Depth Analysis of Structural and Spectroscopic Properties","authors":"Iulia Corina Ciobotaru, Claudiu Constantin Ciobotaru, Cristina Bartha, Monica Enculescu, Mihail Secu, Silviu Polosan, Cristina Besleaga","doi":"10.1002/adom.202402242","DOIUrl":"https://doi.org/10.1002/adom.202402242","url":null,"abstract":"When used as the active layers—either as a light absorber in photovoltaic devices or as an electroluminescent material in light-emitting devices—lead-free perovskites significantly impact the performance of optoelectronic devices. This study focuses on antimony-based perovskites, which are promising for lighting applications. These types of perovskites enable the formation of self-trapped excitons (STEs) with higher dissociation energy than lead-based perovskites, which generate excitons with lower dissociation energy. The (CH3NH3)3Sb2I9 crystals are synthesized using two methods, resulting in distinct spatial configurations – dimer and dimer/layered mixtures, each exhibiting unique structural and spectroscopic properties, as revealed by comprehensive multi-parametric complementary analyses. Their emissive properties underscore the efficiency of the STE photoluminescence, driven by electron–phonon interactions and influenced by Sb-Sb distances in (CH3NH3)3Sb2I9 powder, whether dispersed in polymethyl-methacrylate or solution. The phase transition from monoclinic to hexagonal (dimer) and trigonal (layered) structures enabled the tuning of the optical properties in direct correlation with the structural and electrical features. The photoluminescence behavior of the STEs, analyzed in conjunction with the Raman spectroscopy, elucidates the dynamic process of the electron-phonon coupling effects in the dimer (face-capping Sb–I octahedra) and layered (corner-sharing Sb–I octahedra) crystallographic structures.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 4","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adom.202402242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Free-Standing Ultrathin Films of 2D Perovskite for Light-Emitting Devices Operating at Strong Coupling Regime (Advanced Optical Materials 2/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-13 DOI: 10.1002/adom.202570043

Karolina Łempicka-Mirek, Mateusz Król, Rafał Mazur, Wiktor Piecek, Jacek Szczytko, Paweł W. Majewski, Barbara Piętka

引用次数: 0

Surface-Buckling-Enhanced 3D Metal/Semiconductor SERS-Active Device for Detecting Organic Chemicals (Advanced Optical Materials 2/2025) 用于检测有机化学品的表面巴克林增强型三维金属/半导体 SERS 活性器件（先进光学材料 2/2025）

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-13 DOI: 10.1002/adom.202570045

Pei-Chieh Tseng, Jing-Ling Bai, Cheng-Fang Hong, Chia-Feng Lin, Han-Yu Hsueh

引用次数: 0

Vertical Hierarchical Architecture of Niobium Diselenide Nanosheets Loaded ZnO Nanorods for High-Performance Self-Powered Broadband Photodetection (Advanced Optical Materials 2/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-13 DOI: 10.1002/adom.202570044

Mahesh Kumar, Bohr-Ran Huang, Adhimoorthy Saravanan, Sheng-Chi Chen, Wesley Wei-Wen Hsiao, Hui Sun

引用次数: 0

Physics-Based Design of Efficient Metasurface Temperature-Adaptive Radiative Coatings

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-12 DOI: 10.1002/adom.202402491

Gabriella M. Hunt, Lance Oh, Robert Bruce, Joseph A. Miragliotta, James Ginn, Andrew P. Warren, James B. Spicer, David B. Shrekenhamer

{"title":"Physics-Based Design of Efficient Metasurface Temperature-Adaptive Radiative Coatings","authors":"Gabriella M. Hunt, Lance Oh, Robert Bruce, Joseph A. Miragliotta, James Ginn, Andrew P. Warren, James B. Spicer, David B. Shrekenhamer","doi":"10.1002/adom.202402491","DOIUrl":"https://doi.org/10.1002/adom.202402491","url":null,"abstract":"This work introduces a physics-based model and detailed examination of how efficient VO2-based, metasurface thermally-adaptive radiative coatings (TARCs) can be designed through careful selection of the dielectric spacer material and thickness as well as tailoring of the tungsten-doped vanadium dioxide (WxV1-xO2 where x = 0 and 0.015) patch dimensions. This study explores how the phase and magnitude of transmission through the nanopatterned layer of the metasurface TARC are impacted by these parameters and subsequently influence the resulting contrast in emissivity between the low- and high-temperature states. When these parameters are optimized, the emissive contrast (8–13 µm) is predicted to be as high as 0.725 and 0.607 respectively for the undoped and doped TARCs. Additionally, this study investigates the use of alumina (Al2O3), a dielectric spacer with significant mechanical stability, and experimentally demonstrate the realization of metasurface TARCs with notably high emissive contrast. The findings describe the fundamental limits of emissivity contrast that can be achieved with a metasurface TARC composed of a WxV1-xO2 layer deposited atop an Al2O3 coated aluminum ground plane. Ultimately, the study provides a deeper understanding of the underlying physics of TARCs and demonstrates that metasurface engineering can be used to achieve enhanced control in tuning their emissive contrast.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 5","pages":""},"PeriodicalIF":8.0,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strong Circularly Polarized Electroluminescence Promoted by Using Chiral Co-Assembled Liquid Crystal Polymers

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-10 DOI: 10.1002/adom.202402426

Hang Li, Dong Li, Chunya Fu, Yihan Chen, Yixiang Cheng

引用次数: 0

Rolled-Up Membranes from GaAs/AlOx Core-Shell Nanowire Ensembles Through Natural Oxidation (Advanced Optical Materials 1/2025)

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2025-01-02 DOI: 10.1002/adom.202570040

Hidetoshi Hashimoto, Keisuke Minehisa, Kaito Nakama, Kentaro Watanabe, Kazuki Nagashima, Takeshi Yanagida, Fumitaro Ishikawa

引用次数: 0

Chiral Binaphthyl[n]arene Gel: Controlled Gelation Ability and Stepwise Amplification of Circularly Polarized Luminescence

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402460

Zhihong Sun, Jintian Zhong, Hao Tang, Lingyun Wang, Derong Cao

{"title":"Chiral Binaphthyl[n]arene Gel: Controlled Gelation Ability and Stepwise Amplification of Circularly Polarized Luminescence","authors":"Zhihong Sun, Jintian Zhong, Hao Tang, Lingyun Wang, Derong Cao","doi":"10.1002/adom.202402460","DOIUrl":"https://doi.org/10.1002/adom.202402460","url":null,"abstract":"The construction of circularly polarized luminescence (CPL) materials through self-assembly of chiral macrocycles has garnered significant attention. However, controlling their nanostructure morphology and understanding chirality amplification mechanisms remain challenging. Here, a series of chiral macrocyclic homologs containing varying numbers of binaphthyl units (binaphthyl[n]arene, denoted as n, n = 2–5) are synthesized in a single-step reaction. All macrocycles exhibited CPL, with stronger chiral amplification observed in smaller homologs, 2 and 3, showing dissymmetry factors (|glum|) of sixfold and 2.75-fold, respectively, compared to the monomer. These smaller homologs form supramolecular gels in various solvents, while larger ones yield amorphous precipitates. Further enhanced CPL is observed in the gels of 2 and 3, with |glum| reaching up to 3.3 × 10−3, 8.25-fold and 5.5-fold, respectively, compared to the monomer. While the gel of 3 remained stable for months, the gel of 2 transformed to microcrystals over days driven by π-π interactions. The findings illuminate a macrocyclic strategy to control luminophore arrangement by tuning molecular rigidity and flexibility with macrocycle size, offering a route for creating CPL-active materials with amplified chirality and gels with controlled stability.","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":"13 6","pages":""},"PeriodicalIF":8.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Room Temperature Broadband Polariton Lasing from a CsPbBr3 Perovskite Plate

IF 8 2区材料科学

Advanced Optical Materials Pub Date : 2024-12-31 DOI: 10.1002/adom.202402543

Maksim D. Kolker, Ivan I. Krasionov, Anton D. Putintsev, Ekaterina D. Grayfer, Tamsin Cookson, Dmitry Tatarinov, Anatoly P. Pushkarev, Denis A. Sannikov, Pavlos G. Lagoudakis

引用次数: 0